Ejection mechanism of injection mold

Abstract

The utility model relates to the technical field of ejection mechanisms of injection molds, in particular to an ejection mechanism of an injection mold, which comprises an injection mold structure, the injection mold structure comprises an upper mold, a lower mold, an upper cover plate and a base, a support table is fixed between the base and the lower mold through bolts, an ejection structure is arranged on the upper side of the support table, and the ejection structure comprises a movable seat. A groove is formed in the upper side of the moving seat, a limiting ring groove is formed in the inner side of the groove, a metal plate is fixed to the upper side of the groove, a plurality of electromagnets are fixed in the moving seat, a plurality of ejector rod structures are attracted to the upper side of the metal plate through the electromagnets, and an ejector hole is formed in the upper side of the base. The ejection mechanism solves the problems that the existing ejection mechanism can only be manufactured by being matched with an injection mold, and the application range is relatively limited.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ejection mechanism of injection mould technical field, specifically point to a kind of ejection mechanism of injection mould. BACKGROUND

[0002] The structure of the existing ejection mechanism for injection mould generally includes a push seat and a pressing plate, a plurality of holes are formed on the upper side of the pressing plate, a plurality of ejection rods are arranged between the pressing plate and the push seat, the top ends of the ejection rods pass through the holes for position fixation, and then the pressing plate and the push seat are fixed by bolts, a sliding sleeve is further clamped between the pressing plate and the push seat, a guide rod is arranged on the inner side of the sliding sleeve, the guide rod is fixed on the base by screws, a compression spring is sleeved between the outer side of the guide rod, the sliding sleeve and the lower die, the push seat is driven to move upward by the extension rod, and then the ejection rod is moved, so that the ejection rod ejects the injection product.

[0003] The existing ejection mechanism is generally matched with the mould, the position of the ejection rod needs to be corresponding to the hole position of the lower die one by one, so that the ejection rod can eject the product, which limits the application range of the ejection mechanism, and one ejection mechanism cannot be applied to various injection moulds. CONTENT OF THE UTILITY MODEL

[0004] The utility model solves the technical problem that the existing ejection mechanism can only be matched with the injection mould for manufacturing, and the application range is limited.

[0005] To solve the above problems, the utility model adopts the technical scheme of an ejection mechanism of injection mould, which comprises an injection mould structure, the injection mould structure comprises an upper die, a lower die, an upper cover plate and a base, a support table is fixed between the base and the lower die by bolts, an ejection structure is arranged on the upper side of the base, the ejection structure comprises a moving seat, a recess is formed on the upper side of the moving seat, a limiting ring groove is formed on the inner side of the recess, a metal plate is fixed on the upper side of the recess, a plurality of electromagnets are fixed in the moving seat, a plurality of ejection rod structures are adsorbed on the upper side of the metal plate by the electromagnets, and an ejection hole is formed on the upper side of the base.

[0006] As a further scheme of the utility model, the ejection rod structure comprises a non-metallic rod, which is not affected by the electromagnet and cannot be adsorbed with the lower die, a metal nail is rotatably connected to the bottom of the non-metallic rod by threads, a pair of metal cover plates are buckled outside the non-metallic rod and the metal nail, which are used to strengthen the contact area between the metal plate and improve the adsorption effect.

[0007] As a further scheme of the utility model, a through hole is formed on the upper side of the moving seat and the metal plate, a sliding sleeve is arranged in the through hole, a guide column is fixed on the inner side of the sliding sleeve on the upper side of the base, and a compression spring is sleeved between the outer side of the guide column, the sliding sleeve and the lower die, so as to facilitate the back pushing of the moving seat.

[0008] As a further scheme of the present utility model: the nonmetallic rod top end passes through the lower mould and is located at the lower side of the mould cavity, which is used for lifting the product.

[0009] As a further scheme of the present utility model: the upper side of the upper mould is provided with a gate structure, which is used for injection molding.

[0010] As a further scheme of the present utility model: the plurality of electromagnets are electrically connected with the external power supply.

[0011] Compared with the prior art, the present utility model has the advantages that: the electromagnetic attraction structure is added, the position of the ejection rod structure is fixed by the electromagnet, the ejection rod structure can be conveniently taken and placed, the position of the ejection rod can be adjusted according to the top die hole of different moulds, and the present utility model can be applied to different moulds. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification, which is used together with the embodiments of the present utility model to explain the present utility model, and does not constitute a limitation on the present utility model. In the drawings:

[0013] Figure 1 It is an overall structure perspective view of the ejection mechanism of the injection mould.

[0014] Figure 2 It is an overall structure sectional view of the ejection mechanism of the injection mould.

[0015] Figure 3 It is a top surface perspective view of the ejection structure in the ejection mechanism of the injection mould.

[0016] Figure 4 It is a sectional view of the ejection rod structure in the ejection mechanism of the injection mould.

[0017] In the drawings:

[0018] 1, upper mould; 2, lower mould; 3, upper cover plate; 4, base; 5, support table; 6, moving seat; 7, metal plate; 8, electromagnet; 9, ejection rod structure; 10, sliding sleeve; 11, guide column; 12, compression spring; 4.1, ejection hole; 6.1, groove; 6.2, limiting ring groove; 9.1, nonmetallic rod; 9.2, metal nail; 9.3, metal cover plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0020] The present application provides a technical solution: in order to solve the existing problems raised in the background art.

[0021] The drawings are combined Figures 1-3 It can be known that the injection mold structure comprises an upper mold 1, a lower mold 2, an upper cover plate 3 and a base 4, a support table 5 is fixed between the base 4 and the lower mold 2 by bolts, an ejection structure is arranged on the upper side of the base 4, the ejection structure comprises a moving seat 6, a recess 6.1 is formed on the upper side of the moving seat 6, a limiting ring groove 6.2 is formed on the inner side of the recess 6.1, a metal plate 7 is fixed on the upper side of the recess 6.1, a plurality of electromagnets 8 are fixed in the moving seat 6 and used for adsorbing and fixing an ejection rod structure 9, a plurality of ejection rod structures 9 are adsorbed on the upper side of the metal plate 7 by the electromagnets 8 and used for lifting the product, an ejection hole 4.1 is formed in the middle of the upper side of the base 4 and used for allowing an external telescopic rod to pass through to lift the moving seat 6 upward; a through hole is formed on the upper side of the moving seat 6 and the metal plate 7, a sliding sleeve 10 is arranged in the through hole, a guide column 11 is fixed on the inner side of the sliding sleeve 10 on the upper side of the base 4, a compression spring 12 is sleeved between the outer side of the guide column 11, the sliding sleeve 10 and the lower mold 2 so as to push the moving seat 6 back; a non-metallic rod 9.1 passes through the lower mold 2 and is located below the mold cavity and is used for lifting the product; a sprue structure is arranged on the upper side of the upper mold 1 and is used for injection molding; the plurality of electromagnets 8 are electrically connected with an external power supply.

[0022] The drawings are combined Figure 4 It can be known that the ejection rod structure 9 comprises a non-metallic rod 9.1 and is not affected by the electromagnet 8 and is not adsorbed with the lower mold 2, a metal nail 9.2 is threadedly connected to the bottom of the non-metallic rod 9.1, a pair of metal cover plates 9.3 are buckled on the outer side of the non-metallic rod 9.1 and the metal nail 9.2 and are used for strengthening the contact area between the metal plate 7 and improving the adsorption effect.

[0023] The working principle of the application is as follows: when the ejection structure is installed, the guide column 11 is first fixed on the base 4 by bolts, then the sliding sleeve 10 and the moving seat 6 are respectively sleeved outside the guide column 11, then the compression spring 12 is sleeved outside the guide column 11, then the lower mold 2 is fixed between the base 4 and the support table 5 by bolts, then the number of the ejection rod structure 9 is determined according to the top die hole below the lower mold 2, then the non-metallic rod 9.1 provided with the metal nail 9.2 is placed on the upper side of the metal plate 7, then the position of the ejection rod structure 9 is determined, the moving seat 6 is slightly moved upward, the non-metallic rod 9.1 is inserted into the top die hole, then a pair of metal cover plates 9.3 are covered outside the metal nail 9.2, then the electromagnet 8 is powered on, and the position of the ejection rod structure 9 is fixed. In the ejection structure, the position of the ejection rod is flexible and variable, and can adapt to different molds.

[0024] The above describes the utility model and its implementation mode, which is not limited, and the drawings shown are only one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structure modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A ejection mechanism of an injection mold, comprising an injection mold structure, the injection mold structure comprising an upper mold (1), a lower mold (2), an upper cover plate (3) and a base (4), a support table (5) being fixed between the base (4) and the lower mold (2) by bolts, characterized in that: The ejection structure is arranged on the upper side of the base (4), and comprises a moving seat (6), a recess (6.1) is formed on the upper side of the moving seat (6), a limiting ring groove (6.2) is formed on the inner side of the recess (6.1), a metal plate (7) is fixed on the upper side of the recess (6.1), a plurality of electromagnets (8) are fixed in the moving seat (6), a plurality of ejection rod structures (9) are adsorbed on the upper side of the metal plate (7) through the electromagnets (8), and an ejection hole (4.1) is formed on the upper side of the base (4) and located at the middle part.

2. A mechanism for ejecting a molded article from a mold cavity in a mold according to claim 1, wherein: The ejection rod structure (9) comprises a non-metallic rod (9.1), a metal nail (9.2) is screw-rotatably connected to the bottom of the non-metallic rod (9.1), and a pair of metal cover plates (9.3) are buckled on the outer sides of the non-metallic rod (9.1) and the metal nail (9.2).

3. A mechanism for ejecting a molded article from a mold cavity in a mold according to claim 2, wherein: Holes are formed on the upper sides of the moving seat (6) and the metal plate (7), a sliding sleeve (10) is arranged in the hole, a guide column (11) is fixed on the inner side of the sliding sleeve (10) and located on the upper side of the base (4), and a compression spring (12) is sleeved between the outer side of the guide column (11), the sliding sleeve (10) and the lower mold (2).

4. A mechanism for ejecting a molded article from a mold cavity in a mold according to claim 3, wherein: The non-metallic rod (9.1) penetrates through the lower mold (2) and is located on the lower side of the mold cavity.

5. A ejection mechanism for an injection mold as defined in claim 4, wherein: The upper mold (1) is provided with a gate structure on the upper side.

6. A mechanism for ejecting a molded article from a mold cavity in a mold according to claim 5, wherein: The plurality of electromagnets (8) are electrically connected with an external power supply.

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